Mack or Kw

Discussion in 'Trucks [ Eighteen Wheelers ]' started by trk3, Sep 30, 2011.

  1. Pablo-UA

    Pablo-UA Road Train Member

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    Hah! all I-shift trannies got tranny dataplate on it. and they may have different torque limits, different gear ratios, different clutches (one ore twin disk) and different software, but are all assemblied in boxes looking like the same. I'm not sure about tranny case, but seems to me some are with thiker walls.

    It is usual thing Volvo does. ZF As-Tronic /Freedom line are family of different transmissions with one name. Eaton does the same way!
     
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  3. 98989

    98989 Road Train Member

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    i know that they come in different strength and with different clutch but

    i have never heard for 16
     
  4. Pablo-UA

    Pablo-UA Road Train Member

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  5. 98989

    98989 Road Train Member

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    would be nice if they offer something more

    than 12

    16 is not good thing because of slow range in low group but 12+2C would be fine for some heavier applications
     
  6. Pablo-UA

    Pablo-UA Road Train Member

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    I agree. New truck engines are more efficient and keep good torque at wider band and that's why when Volvo introduced first D12 they discontinued 16+2C transmissions (in the USA they call 16st + 2C 18st transmission).

    But IMO, the best ballance of reliability, diraboloty, number of gears and price is in 10 st transmissions. That's why I like old good eaton. For European market Eaton makes synchro transmissions. I used to drive synchro too. Yeah, there is one advantage - you can skip gears (3-5-7-8!).
     
  7. 98989

    98989 Road Train Member

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    for road operation no need for more than 12

    but for more serious application need 14-16

    but 16 have big problems with durability

    i like mercedes way as powershift 12 and 16
     
  8. Pablo-UA

    Pablo-UA Road Train Member

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    EPS was a good tranny, but not smart ECU. Too many wires. TCU was in cabin and wiring to 8 solenoids, five shift sensors, two speed sensors were all from cab to chassis in big heavy wiring harness. All wires were wight (but number marked). TCU was really dumb comparing with new. No automated clutch. But it was the best product in 80s-early 90s.

    later GS on early actros was better and used now on Axor, Unimog, Atego. GS-2 TCU had some kid's desearses but now reliable enought. It is tranny mounted, CAN controlled.
     
  9. 98989

    98989 Road Train Member

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    no no i am talking about 16speed powershift

    scania had more advanced automated gearbox in 80s it was called cag

    not very smart but you have only to press clutch for shifting so no selecting gears

    eps was pain in to axx for repairing

    we tried once to retrofit truck with eps

    and we gave up
     
  10. Pablo-UA

    Pablo-UA Road Train Member

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    EPS retrogiting? It is not easy, many wires, selector unit wiring, gear display (reads fault codes).. What was truck? what engine? Euro-2 ore older? with FMR? Some EPS units use CAN, some not (for example early EPS units may be used with E1 engines (no electronics), as tacho signal alternator W output is used).

    I did tranny swap too. Onese we swaped I-shift with Geartronic) Runs well now))))
     
  11. 98989

    98989 Road Train Member

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    yes eps retrofitting
    i know now

    truck was 10/1992 2629 6x4 with mercedes gearbox 6gear and split gearbox called "110"

    we tried to swap it to 16speed "130" and put eps on it

    it is euro1 engine and at the end gearbox was inside but only as manual

    on which truck (which purpose)

    geartronic is older than i-shift or is it powershift?
     
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